Habenaria reniformis (D.Don) Hook.

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 147-148

Habenaria reniformis (D.Don) Hook. f., Fl. Brit. India 6: 152, 1890

Basionym: Listera reniformis D.Don, Prodr. Fl. Nepal.: 28, 1825.

Homotypic synonym: Neottia reniformis (D.Don) Spreng., Syst. Veg. 3: 707, 1826.

Specimens examined:— CHIN. Mindat District : 1200 m, 2 Sep 2011, Funakoshi et al. 085039 ( MBK) . MANDALAY. Myingyan District : 26 Oct 2009, Saw Lwin et al. MPO 020 ( SING) .

Distribution:— India, the Himalayas, Myanmar, Thailand, Indochina, southern China and western Indonesia (Sumatra).

Habenaria rodgeri W.W.Sm. & Banerji, Rec. Bot. Surv. India 6: 34, 1914. Type:— MYANMAR. Mandalay Region: Pyinoolwin District , 305 m, Sep 1910, Rodger 201 (holotype: CAL; isotype: K)

Habenaria rhodocheila auctt. plur. non Hance

Habenaria erichmichelii auct. non Christenson: Tanaka et al. (2011: 164).

Specimens examined:— CHIN. Falam District : 1830 m, 1923, Daun 98 ( K) ; Mindat District : 1370 m, 15 Sep 1956, Maung Gale-2 5785 p.p. ( RAF) ; same loc., 900 m, 21 Sep 1956, Kingdon-Ward 22700 ( BM) . MANDALAY. Pyinoolwin District : type; same loc., 1065 m, Samuel 13582 ( K) ; Myingyan District : 15 Sep 2002, Khin Myo Htwe 024088 A ( MBK, TI) ; same loc., Saw Lwin s.n. ( SING, SING [s]) .

Distribution:— Endemic.

Notes:— The species has been considered conspecific with the widespread H. rhodocheila Hance but differs strikingly in its foliage (broadly ovate-lanceolate and green basal leaves with whitish mottling). Vegetatively, the plants resemble H. carnea Weathers from Peninsular Thailand and Malaysia, which has a different floral structure. Daun 98 was in fact originally identified as ‘a form of H. carnea ’. We have provisionally recognised H. rodgeri as a distinct species but suggest that a study of the entire H. rhodocheila group needs to be undertaken in order to clarify its taxonomy.

Habenaria rostrata Wall. ex Lindl. , Gen . Sp. Orchid. Pl.: 325, 1835. Type:— MYANMAR. Bago Region: Pyay District , 1826, Wallich, Numer. List: no. 7051A (holotype: K-LINDL; isotype: GH)

Homotypic synonym: Habenaria acuifera Wall. ex Lindl. var. rostrata (Wall. ex Lindl.) Finet, Rev. Gén . Bot. 13: 526, 1901.

Specimens examined:— SHAN. Loilen District : 1370 m, 27 Jul 1911, Robertson 383 ( K) . BAGO. Pyay District : type. WITHOUT LOCALITY. Parish 228 (not located), fide Parish (1883: 201). Reported from Tanintharyi Region by Kress et al. (2003: 81), but we have not seen material from this area.

Distribution:— Myanmar, Thailand, Indochina and southwestern China.

Habenaria shweliensis W.W.Sm. & Banerji, Rec. Bot. Surv. India 6: 33, 1914. Type:— MYANMAR. Shan State: Kyaukme District , Sep 1910, Rodger 387 (holotype: CAL; isotype: K)

Specimens examined:— MANDALAY. Pyinoolwin District: Jul 1912, Lace s.n. ( E), ident. uncertain; Myingyan District : 12 Aug 2011, Kim s.n., photo . SHAN. Kyaukme District: type; Taunggyi District: 18 Aug 2018, Kim s.n., photo, ident. uncertain; same loc., 25 Jul 2019, 1215– 1380 m, Hervouet s.n., photo; Loilen District : 1370 m, 25 Jul 1911, Robertson 381 ( K) .

Distribution:— Endemic.

Note:— Habenaria crassilabia Kraenzl. from China, Korea and Japan has been treated as a synonym of this species, but recently Yukawa & Yagi (2011) have recognized the former as a good species. Thus H. shweliensis is endemic to Myanmar.

Habenaria spatulifolia C.S.P.Parish & Rchb. f., Trans. Linn. Soc. London 30: 140, 1874. Type:— MYANMAR. Tenasserim:? Kayin State:?Hpa-An District , Parish 217 (holotype: K)

Specimen examined:—? KAYIN.?Hpa-An District : type. Also reported from Tanintharyi Region by Kress et al. (2003: 81), but we have not seen material from this area.

Distribution:— Endemic.